Quadrupole amplifier
[电] 四极放大器
🧩 词语组成解析
[化] 四极
🗣️ 情景例句
I'm quite active and energetic.
我积极而充满活力。
When the phone rang, I was painting upstairs.
当电话铃响的时候，我在楼上画画。
We're really going to need it.
我们真的一定要定到。